[Bug 27192] bad double buffering or vertical sync

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27192

--- Comment #25 from Lollerke <pumba88 at gmail.com> 2011-02-14 08:17:21 PST ---
dmesg:

"[    7.936293] [drm] radeon defaulting to kernel modesetting.
[    7.936299] [drm] radeon kernel modesetting enabled.
[    7.936458] radeon 0000:01:05.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[    7.939726] [drm] initializing kernel modesetting (RS400 0x1002:0x5A62).
[    7.939790] [drm] register mmio base: 0xC0000000
[    7.939793] [drm] register mmio size: 65536
[    7.940143] [drm] Generation 2 PCI interface, using max accessible memory
[    7.940154] radeon 0000:01:05.0: VRAM: 128M 0x0000000058000000 -
0x000000005FFFFFFF (128M used)
[    7.940159] radeon 0000:01:05.0: GTT: 512M 0x0000000060000000 -
0x000000007FFFFFFF
[    7.940177] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    7.940180] [drm] Driver supports precise vblank timestamp query.
[    7.940255] [drm] radeon: irq initialized.
[    7.942623] [drm] Detected VRAM RAM=128M, BAR=256M
[    7.942629] [drm] RAM width 128bits DDR
[    7.942763] [TTM] Zone  kernel: Available graphics memory: 440494 kiB.
[    7.942766] [TTM] Zone highmem: Available graphics memory: 705970 kiB.
[    7.942769] [TTM] Initializing pool allocator.
[    7.942805] [drm] radeon: 128M of VRAM memory ready
[    7.942808] [drm] radeon: 512M of GTT memory ready.
[    7.942841] [drm] GART: num cpu pages 131072, num gpu pages 131072
[    7.969009] [drm] radeon: 1 quad pipes, 1 z pipes initialized."

I get perfect video playback only with UMS and Overlay Video Output.

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